<!--富姐页面：控制所有除登录页面以外的子页面的共有的头部与左侧侧边栏-->
<template>
  <div style="display: flex">
    <div :style="{width:(isCollapse ? '64px':'208px')}">
      <!--  左侧边栏    -->
      <el-menu
          background-color="#3c82F5"
          style="width: 100% ; height: 100vh;"
          text-color="#fff"
          active-text-color="#ff0"
          :collapse="isCollapse"
          :collapse-transition="false"
          unique-opened
          router
          @select="selectMenu"
      >
        <el-row style="padding-top: 10px">
          <el-col :span="2"></el-col>
          <el-col :span="7" style="padding-left: 8px">
            <el-avatar src="/imgs/admin/logo.png" style=" width: 35px; height: 35px; "></el-avatar>
          </el-col>
          <el-col :span="isCollapse ? 0 : 13">
            <router-link to="/" style="color: #fff; text-decoration: none; font-weight: bold;
            position: relative; top:8px; left: 2px;">
              智慧车辆
            </router-link>
          </el-col>
        </el-row>
        <el-sub-menu index="1">
          <template #title>
            <el-icon style="font-size: 21px">
              <User/>
            </el-icon>
            <span>用户管理</span>
          </template>
          <el-menu-item index="/user">用户列表</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="2">
          <template #title>
            <el-icon style="font-size: 21px">
              <Van/>
            </el-icon>
            <span>车辆管理</span>
          </template>
          <el-menu-item index="/vehicle">车辆列表</el-menu-item>
        </el-sub-menu>

        <el-sub-menu index="3">
          <template #title>
            <el-icon style="font-size: 21px">
              <Location/>
            </el-icon>
            <span>电子围栏</span>
          </template>
          <el-menu-item index="/geofence">围栏管理</el-menu-item>
        </el-sub-menu>

        <el-sub-menu index="4">
          <template #title>
            <el-icon style="font-size: 21px">
              <Place/>
            </el-icon>
            <span>调度管理</span>
          </template>
          <el-menu-item index="/application">申请列表</el-menu-item>
          <el-menu-item index="/audit">调度审核</el-menu-item>
          <el-menu-item index="/distribute">车辆分配</el-menu-item>
        </el-sub-menu>
        <el-sub-menu index="5">
          <template #title>
            <el-icon style="font-size: 21px">
              <MessageBox/>
            </el-icon>
            <span>数字字典</span>
          </template>
          <el-menu-item index="/dict">字典管理</el-menu-item>
        </el-sub-menu>
      </el-menu>
    </div>
    <div :style="{width:(isCollapse ? 'calc(100% - 64px)' : 'calc(100% - 208px)')}">
      <!--   右边顶部条   -->
      <el-header style="background-color: #fff ; height: 10vh; padding-top: 22px">
        <el-row :gutter="10">
          <el-col :span="18">
            <el-icon style="font-size: 20px" @click="changeCollage()">
              <Expand/>
            </el-icon>
          </el-col>
          <el-col :span="6" style="position: relative ;">
            <el-dropdown trigger="click" style="position: absolute; right: 20px">
              <span style="font-size: 19px; font-weight: bold" >
                {{ user.username }}
                <el-icon class="el-icon--right">
                  <arrow-down/>
                </el-icon>
              </span>
              <template #dropdown>
                <el-dropdown-menu>
                  <el-dropdown-item @click="logout">退出登录</el-dropdown-item>
                </el-dropdown-menu>
              </template>
            </el-dropdown>
          </el-col>
        </el-row>
        <el-breadcrumb separator="/" style="position: relative; top: 20px;">
          <el-breadcrumb-item >首页</el-breadcrumb-item>
          <el-breadcrumb-item v-for="index in breadcrumb">{{ index }}</el-breadcrumb-item>
        </el-breadcrumb>
      </el-header>
      <!--   右边main内容   -->
      <el-main style="height: 90vh; padding: 0; overflow-y:auto">
      <router-view/>
      </el-main>
    </div>
  </div>


</template>

<script setup>
import {computed, ref} from "vue";
import router from "@/router";

const user = ref(getUser());

const logout = () => {
  if (confirm('确认是否要登出')) {
    //清空当前登录用户的数据
    localStorage.removeItem('user');
    //清空面包屑数据
    localStorage.removeItem('breadCrumb');
    //跳转到登录页
    window.location.href='/login';
    //再清空变量里的用户信息
    user.value = '';
  }
}

const changeCollage = () => {
  isCollapse.value = isCollapse.value ? false : true;
};

let map={
  "/user": ['用户管理','用户列表'],
  "/vehicle": ['车辆管理','车辆列表'],
  "/geofence": ['电子围栏','围栏管理'],
  "/application": ['调度管理','申请列表'],
  "/audit": ['调度管理','调度审核'],
  "/distribute": ['调度管理','车辆分配'],
  "/dict": ['数据字典','字典管理']
};

//增加一个刷新后不会重置的
const breadcrumb = ref( JSON.parse(localStorage.getItem('breadCrumb')) || ['用户管理','用户列表']);
// const breadcrumb = computed(()=> map[router.currentRoute.value.path ]);

const isCollapse = ref(false);

const selectMenu = (index)=>{
  breadcrumb.value=map[index];
  //解决刷新后数据丢失的问题，因为刷新后变量会重置
  localStorage.setItem('breadCrumb',JSON.stringify(breadcrumb.value))
};

</script>